What is 3105-H24 Aluminum?


3105-H24 aluminum is 3105 aluminum in the H24 temper. To achieve this temper, the metal is strain hardened, and then partially annealed, to a strength that is roughly halfway between annealed (O) and full-hard (H28).

The graph bars on the material properties cards below compare 3105-H24 aluminum to: 3000-series alloys (top), all aluminum alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Brinell Hardness


Elastic (Young's, Tensile) Modulus

69 GPa10 x 106 psi

Elongation at Break

5.6 %

Fatigue Strength

74 MPa11 x 103 psi

Poisson's Ratio


Shear Modulus

26 GPa3.8 x 106 psi

Shear Strength

110 MPa15 x 103 psi

Tensile Strength: Ultimate (UTS)

170 MPa25 x 103 psi

Tensile Strength: Yield (Proof)

140 MPa21 x 103 psi

Thermal Properties

Latent Heat of Fusion

400 J/g

Maximum Temperature: Mechanical

180 °C360 °F

Melting Completion (Liquidus)

660 °C1210 °F

Melting Onset (Solidus)

640 °C1180 °F

Specific Heat Capacity

900 J/kg-K0.21 BTU/lb-°F

Thermal Conductivity

170 W/m-K98 BTU/h-ft-°F

Thermal Expansion

24 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

44 % IACS

Electrical Conductivity: Equal Weight (Specific)

140 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Calomel Potential

-750 mV


2.8 g/cm3170 lb/ft3

Embodied Carbon

8.2 kg CO2/kg material

Embodied Energy

150 MJ/kg66 x 103 BTU/lb

Embodied Water

1180 L/kg140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

9.1 MJ/m3

Resilience: Unit (Modulus of Resilience)

140 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

50 points

Strength to Weight: Axial

18 points

Strength to Weight: Bending

25 points

Thermal Diffusivity

68 m2/s

Thermal Shock Resistance

7.6 points

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